Relaxation type oscillations in an argon glow discharge

TL;DRAbstract

Under certain conditions an anomalous mode exists in a medium pressure argon glow direct current discharge in which the entire positive column oscillates between minimum and maximum light intensity with a corresponding oscillation in voltage across the tube of very large amplitude.The conditions required to obtain the anomalous mode which proved to be a relaxation type oscillation were investigated and its characteristics ascertained.Discharge times of the order of 10~-?seconds were obtained without using microwave techniques or equipment.An analysis was then made of the afterglow in argon at pressures between two and twenty mm of Hg.Afterglow decay processes appeared to follow those formulated by other investigators in that the decay processes were dependent upon the mode of external excitation of the gas and the gas pressure.The writers wish to express their sincere thanks to Dr. N. L. Oleson for his keen interest and helpful guidance in the conduction of this investigation.Arrival t

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